GB201114795D0 - Pitch change mechanism for open rotor architecture - Google Patents

Pitch change mechanism for open rotor architecture

Info

Publication number
GB201114795D0
GB201114795D0 GBGB1114795.6A GB201114795A GB201114795D0 GB 201114795 D0 GB201114795 D0 GB 201114795D0 GB 201114795 A GB201114795 A GB 201114795A GB 201114795 D0 GB201114795 D0 GB 201114795D0
Authority
GB
United Kingdom
Prior art keywords
change mechanism
pitch change
open rotor
rotor architecture
architecture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB1114795.6A
Other versions
GB2493980B (en
GB2493980A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GE Aviation Systems LLC
Original Assignee
GE Aviation Systems LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GE Aviation Systems LLC filed Critical GE Aviation Systems LLC
Priority to GB1114795.6A priority Critical patent/GB2493980B/en
Publication of GB201114795D0 publication Critical patent/GB201114795D0/en
Priority to DE102012107419A priority patent/DE102012107419A1/en
Priority to CA2786182A priority patent/CA2786182A1/en
Priority to US13/588,180 priority patent/US9376202B2/en
Priority to FR1257942A priority patent/FR2980513A1/en
Priority to CN201210304564.5A priority patent/CN102953759B/en
Priority to BRBR102012021375-3A priority patent/BR102012021375A2/en
Publication of GB2493980A publication Critical patent/GB2493980A/en
Priority to US15/195,429 priority patent/US20160368592A1/en
Application granted granted Critical
Publication of GB2493980B publication Critical patent/GB2493980B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/306—Blade pitch-changing mechanisms specially adapted for contrarotating propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/30—Blade pitch-changing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/306—Blade pitch-changing mechanisms specially adapted for contrarotating propellers
    • B64C11/308—Blade pitch-changing mechanisms specially adapted for contrarotating propellers automatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D27/02—Aircraft characterised by the type or position of power plants
    • B64D27/16—Aircraft characterised by the type or position of power plants of jet type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D35/00—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
    • B64D35/04—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors
    • B64D35/06—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors the propellers or rotors being counter-rotating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/24—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like
    • F01D1/26—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like traversed by the working-fluid substantially axially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/48—Control of fuel supply conjointly with another control of the plant
    • F02C9/56—Control of fuel supply conjointly with another control of the plant with power transmission control
    • F02C9/58—Control of fuel supply conjointly with another control of the plant with power transmission control with control of a variable-pitch propeller
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
    • F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
    • F02K3/025—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the by-pass flow being at least partly used to create an independent thrust component
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
    • F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
    • F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
    • F02K3/072—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type with counter-rotating, e.g. fan rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D2027/005—Aircraft with an unducted turbofan comprising contra-rotating rotors, e.g. contra-rotating open rotors [CROR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/323—Application in turbines in gas turbines for aircraft propulsion, e.g. jet engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/40—Transmission of power
    • F05D2260/403—Transmission of power through the shape of the drive components
    • F05D2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05D2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclical, planetary or differential type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Transmission Devices (AREA)
GB1114795.6A 2011-08-26 2011-08-26 Pitch control of contra-rotating airfoil blades Active GB2493980B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB1114795.6A GB2493980B (en) 2011-08-26 2011-08-26 Pitch control of contra-rotating airfoil blades
DE102012107419A DE102012107419A1 (en) 2011-08-26 2012-08-13 Angle change mechanism for open rotor structure
CA2786182A CA2786182A1 (en) 2011-08-26 2012-08-16 Pitch change mechanism for open rotor architecture
US13/588,180 US9376202B2 (en) 2011-08-26 2012-08-17 Pitch control of contra-rotating airfoil blades
FR1257942A FR2980513A1 (en) 2011-08-26 2012-08-23 SHIFTING CHANGE MECHANISM FOR OPEN ROTOR ENGINE
CN201210304564.5A CN102953759B (en) 2011-08-26 2012-08-24 For the pitch change mechanism of open rotor framework
BRBR102012021375-3A BR102012021375A2 (en) 2011-08-26 2012-08-24 STEP CONTROL MECHANISM, TURBINE ENGINE AND STEP CHANGE MECHANISM
US15/195,429 US20160368592A1 (en) 2011-08-26 2016-06-28 Pitch control of contra-rotating airfoil blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1114795.6A GB2493980B (en) 2011-08-26 2011-08-26 Pitch control of contra-rotating airfoil blades

Publications (3)

Publication Number Publication Date
GB201114795D0 true GB201114795D0 (en) 2011-10-12
GB2493980A GB2493980A (en) 2013-02-27
GB2493980B GB2493980B (en) 2018-02-14

Family

ID=44838786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1114795.6A Active GB2493980B (en) 2011-08-26 2011-08-26 Pitch control of contra-rotating airfoil blades

Country Status (7)

Country Link
US (2) US9376202B2 (en)
CN (1) CN102953759B (en)
BR (1) BR102012021375A2 (en)
CA (1) CA2786182A1 (en)
DE (1) DE102012107419A1 (en)
FR (1) FR2980513A1 (en)
GB (1) GB2493980B (en)

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KR100962774B1 (en) * 2009-11-09 2010-06-10 강현문 Wind power generator
GB2493980B (en) * 2011-08-26 2018-02-14 Ge Aviat Systems Ltd Pitch control of contra-rotating airfoil blades
FR2980770B1 (en) * 2011-10-03 2014-06-27 Snecma AIRBORNE TURBINE ENGINE (S) FOR AIRCRAFT WITH SYSTEM FOR CHANGING THE PROPELLER STEP.
FR3013325B1 (en) * 2013-11-20 2015-11-27 Snecma PRESSURE OIL SUPPLY DEVICE OF A TURBOMACHINE LINEAR ACTUATOR
FR3017164B1 (en) * 2014-02-03 2016-02-05 Snecma TURBOMACHINE WITH DOUBLET OF PROPELLERS FOR AIRCRAFT
FR3021296B1 (en) * 2014-05-21 2017-12-22 Snecma DUAL PROPELLER PROPELLER ASSEMBLY FOR AIRCRAFT
FR3036141B1 (en) 2015-05-12 2019-08-09 Safran Aircraft Engines RADIAL CONTROL SHAFT FOR DEVICE FOR CONTROLLING THE ORIENTATION OF BLOWER BLADES OF A NON - CARBENE BLOWER TURBOMACHINE AND METHOD FOR MOUNTING SUCH A SHAFT.
FR3039217B1 (en) * 2015-07-22 2017-07-21 Snecma AIRCRAFT COMPRISING A TURBOMACHINE INTEGRATED WITH REAR FUSELAGE COMPRISING A SYSTEM FOR BLOCKING BLOWERS
PL226826B1 (en) * 2015-09-03 2017-09-29 Gen Electric System controlling the pitch of impeller assembly, turbine engine, and method for controlling the airscrew blades pitch angle
FR3055308B1 (en) * 2016-08-26 2018-08-17 Safran Aircraft Engines MEANS FOR CONTROLLING A STEERING CHANGE SYSTEM COMPRISING AN ANTI-ROTATION DEVICE, A SHIFT SYSTEM EQUIPPED WITH SAID CONTROL MEANS AND CORRESPONDING TURBOMACHINE
US10823064B2 (en) * 2016-10-06 2020-11-03 General Electric Company Gas turbine engine
FR3059364B1 (en) * 2016-11-30 2018-11-23 Safran Aircraft Engines SYSTEM FOR SUSPENSION OF A FIRST ANNULAR ELEMENT IN A SECOND ANNULAR ELEMENT OF TURBOMACHINE AND CORRESPONDING TURBOMACHINE
US20210339846A1 (en) 2019-10-15 2021-11-04 General Electric Company Removeable fuselage shield for an aircraft
US11286795B2 (en) 2019-10-15 2022-03-29 General Electric Company Mount for an airfoil
US11401824B2 (en) 2019-10-15 2022-08-02 General Electric Company Gas turbine engine outlet guide vane assembly
US11834196B2 (en) 2019-10-15 2023-12-05 General Electric Company System and method for control for unducted engine
US11506067B2 (en) 2019-10-15 2022-11-22 General Electric Company Gas turbine engine with clutch assembly
US11428160B2 (en) 2020-12-31 2022-08-30 General Electric Company Gas turbine engine with interdigitated turbine and gear assembly

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US4842484A (en) * 1983-08-29 1989-06-27 General Electric Company Blade gearing and pitch changing mechanisms for coaxial counterrotating propellers
US4657484A (en) 1984-09-04 1987-04-14 General Electric Company Blade pitch varying means
GB2180892B (en) * 1985-09-28 1990-03-07 Dowty Rotol Ltd A control system for a bladed rotor assembly
GB2186918B (en) * 1986-02-25 1989-11-15 Rolls Royce Propeller module for an aero gas turbine engine
US4927329A (en) 1988-10-21 1990-05-22 General Electric Company Aircraft engine unducted fan blade pitch control system
US5282719A (en) 1991-05-13 1994-02-01 Alliedsignal Inc. Quad mode fan pitch actuation system for a gas turbine engine
GB0614302D0 (en) * 2006-07-19 2006-08-30 Rolls Royce Plc An engine arrangement
FR2941492B1 (en) * 2009-01-23 2011-09-09 Snecma POWER TURBINE TURBINE ENGINE COMPRISING AN ELECTRONIC POWER GENERATOR CENTERED ON THE AXIS OF TURBOMACHINE
FR2942615B1 (en) * 2009-02-27 2011-04-01 Snecma DEVICE WITH CONTRAROTATIVE PROPELLERS HAVING A MEANS FOR CHANGING THE STEPS OF THE PROPELLERS
GB0904913D0 (en) * 2009-03-24 2009-05-06 Rolls Royce Plc A mechanical arrangement
FR2945512B1 (en) * 2009-05-15 2012-08-24 Snecma NON-CAREED PROPELLER HAVING A VARIABLE SHAFT FOR A TURBOMACHINE
GB201000144D0 (en) * 2010-01-07 2010-02-24 Rolls Royce Plc Pitch Change Apparatus
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US8371105B2 (en) * 2010-09-30 2013-02-12 General Electric Company Hydraulic system for fan pitch change actuation of counter-rotating propellers
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GB2493980B (en) * 2011-08-26 2018-02-14 Ge Aviat Systems Ltd Pitch control of contra-rotating airfoil blades

Also Published As

Publication number Publication date
CN102953759B (en) 2016-01-06
US20160368592A1 (en) 2016-12-22
BR102012021375A2 (en) 2014-04-29
US9376202B2 (en) 2016-06-28
US20130052016A1 (en) 2013-02-28
GB2493980B (en) 2018-02-14
CA2786182A1 (en) 2013-02-26
FR2980513A1 (en) 2013-03-29
CN102953759A (en) 2013-03-06
DE102012107419A1 (en) 2013-02-28
GB2493980A (en) 2013-02-27

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